New 3.8% Net Investment Tax

This is the new Obamacare tax that starts 1/1/2013 for all single filers making over $200,000 and joint filers making over $250,000. Given the following set of facts the new tax would be $3,800 on the 2013 income tax return:

Single filer with adjusted gross income of $300,000 and net investment income of $200,000 included in the $300,000:
Tax is the lesser of 300,000-200,000 x 3.8%=$3,800 or 200,000 x 3.8%= $7,600

Net investment income is defined as all dividends, interest, capital gains, net rental income, and passive activity income. Earned income and retirement income are not included.